--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/visualizer/Graal/src/com/sun/hotspot/igv/graal/filters/GraalEdgeColorFilter.java	Tue Feb 07 22:41:09 2012 +0100
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+package com.sun.hotspot.igv.graal.filters;
+
+import com.sun.hotspot.igv.data.Properties;
+import com.sun.hotspot.igv.filter.AbstractFilter;
+import com.sun.hotspot.igv.graph.Connection;
+import com.sun.hotspot.igv.graph.Connection.ConnectionStyle;
+import com.sun.hotspot.igv.graph.Diagram;
+import com.sun.hotspot.igv.graph.Figure;
+import com.sun.hotspot.igv.graph.InputSlot;
+import java.awt.Color;
+import java.util.List;
+
+/**
+ * Filter that colors usage and successor edges differently.
+ * 
+ * @author Peter Hofer
+ */
+public class GraalEdgeColorFilter extends AbstractFilter {
+
+    private Color successorColor = Color.BLUE;
+    private Color usageColor = Color.RED;
+    private Color memoryColor = Color.GREEN;
+
+    public GraalEdgeColorFilter() {
+    }
+
+    @Override
+    public String getName() {
+        return "Graal Edge Color Filter";
+    }
+
+    @Override
+    public void apply(Diagram d) {
+        List<Figure> figures = d.getFigures();
+        for (Figure f : figures) {
+            Properties p = f.getProperties();
+            int predCount;
+            if (p.get("predecessorCount") != null) {
+                predCount = Integer.parseInt(p.get("predecessorCount"));
+            } else {
+                predCount = 0;
+            }
+            for (InputSlot is : f.getInputSlots()) {
+                Color color;
+                ConnectionStyle style = ConnectionStyle.NORMAL;
+                if (is.getPosition() < predCount) {
+                    color = successorColor;
+                    style = ConnectionStyle.BOLD;
+                } else {
+                    color = usageColor;
+                }
+
+                is.setColor(color);
+                for (Connection c : is.getConnections()) {
+                    if (c.getLabel() == null || !c.getLabel().endsWith("#NDF")) {
+                        c.setColor(color);
+                        c.setStyle(style);
+                    } else if ("EndNode".equals(c.getOutputSlot().getFigure().getProperties().get("class"))
+                            || "EndNode".equals(c.getOutputSlot().getProperties().get("class"))) {
+                        c.setColor(successorColor);
+                        c.setStyle(ConnectionStyle.BOLD);
+                    }
+                }
+            }
+        }
+    }
+
+    public Color getUsageColor() {
+        return usageColor;
+    }
+
+    public void setUsageColor(Color usageColor) {
+        this.usageColor = usageColor;
+    }
+
+    public void setMemoryColor(Color memoryColor) {
+        this.memoryColor = memoryColor;
+    }
+
+    public Color getMemoryColor() {
+        return memoryColor;
+    }
+
+    public Color getSuccessorColor() {
+        return successorColor;
+    }
+
+    public void setSuccessorColor(Color successorColor) {
+        this.successorColor = successorColor;
+    }
+}